(4R,5R)-5-hydroxymethyl-2,2,4-trimethyl-1,3-dioxolane | 73679-54-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (4R,5R)-5-hydroxymethyl-2,2,4-trimethyl-1,3-dioxolane
• 英文别名: (2R,3R)-2,3-(propane-2,2-dioxy)-1-butanol；((4R,5R)-2,2,5-trimethyl-1,3-dioxolan-4-yl)methanol；[2,2,5-trimethyl-1,3-dioxolan-4-yl]methanol；trans-2,2,5-Trimethyl-1,3-dioxolan-4-methanol；[(4R,5R)-2,2,5-trimethyl-1,3-dioxolan-4-yl]methanol
• CAS: 73679-54-6
• 化学式: C₇H₁₄O₃
• 分子量: 146.186
• InChiKey: VWUQFWPEGNZUQV-PHDIDXHHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  38.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (4R,5R)-5-hydroxymethyl-2,2,4-trimethyl-1,3-dioxolane 在 草酰氯 、 二甲基亚砜 、 三乙胺 、 三苯基膦 作用下， 反应 0.83h， 生成 (4R,5R)-4-(2,2-dibromovinyl)-2,2,5-trimethyl-1,3-dioxolane
  参考文献：
  名称：

  Approach towards C12 oxo analogues of the side chain of pumiliotoxin B/allopumiliotoxin 339A and B

  摘要：

  A route towards the synthesis of analogues of pumiliotoxin and allopumiliotoxin side-chain is described. The C I 5,C 16 diol was introduced by asymmetric dihydroxylation using AD-mix beta of C10,C17 enynone intermediate 14, or of C13,C17 precursor 17, or by using a chiron-based route from 24. The trisubstituted alkene functionality was established using arylthio conjugate addition to ynones 16 and 27, followed by a copper-catalyzed stereoretentive reaction with methylmagnesium bromide. The approach enables access to C12 oxo systems and offers an approach towards new C14 analogues. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(02)01071-7
• 作为产物：
  描述：

  L-苏氨酸 生成 (4R,5R)-5-hydroxymethyl-2,2,4-trimethyl-1,3-dioxolane
  参考文献：
  名称：

  Synthesis of the enantiomeric forms of and 1-benzyloxy-2,3-epoxy butane and of (3,4) 4-methyl-3-heptanol

  摘要：

  DOI：

  10.1016/s0040-4039(00)88722-5

文献信息

• On the selectivity of oxynitrilases towards α-oxygenated aldehydes
  作者：Paola Bianchi、Gabriella Roda、Sergio Riva、Bruno Danieli、Antonina Zabelinskaja-Mackova、Herfried Griengl

  DOI：10.1016/s0040-4020(01)00054-0

  日期：2001.3

  Different α-alkoxy and α,β-di-alkoxy substituted aldehydes have been submitted to the catalytic action of the oxynitrilases from almond (PaHNL) or from Hevea brasiliensis (HbHNL), in order to explore the possibility of using these enzymes for the preparation of complex cyanohydrins. The selectivity of both enzymes towards these compounds was found to be largely dependent on the substitutents, being

  不同α -烷氧基和α，β二-烷氧基取代的醛已经被提交到醇腈的从杏仁催化作用（PaHNL）或者从巴西橡胶树（HbHNL），为了探索使用这些酶制剂的可能性复杂的氰醇。发现两种酶对这些化合物的选择性在很大程度上取决于取代基，因为醛带有在空间上更需要的苯基取代基的醛较低。违背化学添加HCN，它总是与用于形成的轻微偏爱发生的反非对映体，所述酶cyanuration存在与面部偏好，硅或再根据所使用的生物催化剂，得到氰醇的混合物，取决于起始的对映异构醛，该混合物可以富含顺式非对映异构体。
• [EN] 4,6-SUBSTITUTED-PYRAZOLO[1,5-a]PYRAZINES AS JANUS KINASE INHIBITORS<br/>[FR] PYRAZOLO[1,5-A] PYRAZINES SUBSTITUÉES EN 4,6 EN TANT QU'INHIBITEURS DE LA JANUS KINASE
  申请人：ARRAY BIOPHARMA INC

  公开号：WO2016090285A1

  公开（公告）日：2016-06-09

  Compounds of Formula I: and stereoisomers and pharmaceutically acceptable salts and solvates thereof in which R1, R2, R3 and R4 have the meanings given in the specification, are inhibitors of one or more JAK kinases and are useful in the treatment of JAK kinase-associated diseases and disorders, such as autoimmune diseases, inflammatory diseases, rejection of transplanted organs, tissues and cells, as well as hematologic disorders and malignancies and their co-morbidities.

  公式I的化合物及其立体异构体和药学上可接受的盐和溶剂化合物，在其中R1、R2、R3和R4具有规范中给定的含义，是一种或多种JAK激酶的抑制剂，并且在治疗JAK激酶相关疾病和疾病方面非常有用，如自身免疫疾病、炎症性疾病、移植器官、组织和细胞的排斥反应，以及血液学疾病和恶性肿瘤及其并发症。
• NON-BASIC MELANIN CONCENTRATING HORMONE RECEPTOR-1 ANTAGONISTS
  申请人：Washburn William N.

  公开号：US20080269110A1

  公开（公告）日：2008-10-30

  The present application provides compounds, including all stereoisomers, solvates, prodrugs and pharmaceutically acceptable forms thereof according to Formula I. Additionally, the present application provides pharmaceutical compositions containing at least one compound according to Formula I and optionally at least one additional therapeutic agent. Finally, the present application provides methods for treating a patient suffering from an MCHR-1 modulated disease or disorder such as, for example, obesity, diabetes, depression or anxiety by administration of a therapeutically effective dose of a compound according to Formula I where R 1 , R 1a , R 1b , A, R 3 , R 4 , R 5 , R5 b and R 6 are as defined herein.

  本申请提供了根据式I提供的化合物，包括所有立体异构体、溶剂合物、前药和药用可接受形式。此外，本申请提供了含有至少一种根据式I的化合物和可选至少一种额外治疗剂的药物组合物。最后，本申请提供了治疗患有MCHR-1调节性疾病或紊乱的患者的方法，例如肥胖症、糖尿病、抑郁症或焦虑症，通过给予根据式I的化合物的治疗有效剂量。其中R1、R1a、R1b、A、R3、R4、R5、R5b和R6如本文所定义。
• Selective Monoalkylation of Acyclic Diols by Means of Dibutyltin Oxide and Fluoride Salts.
  作者：Nobuo NAGASHIMA、Masaji OHNO

  DOI：10.1248/cpb.39.1972

  日期：——

  Fluoride anion was found to promote monoalkylation reaction of diols by the stannylene acetal method, and selective monoalkylation of various acyclic diols was accomplished in good yields under mild conditions by employing this new method. Functional groups such as carboxylic acid ester, carboxamide, carbamate, nitrile, alkyl chloride, and ether were not affected under the reaction conditions.

  氟化物阴离子被发现能够通过锡烯醇反应促进二醇的单烷基化反应，并且在温和条件下，采用这种新方法成功实现了多种非环状二醇的选择性单烷基化，产率良好。在反应条件下，羧酸酯、羧酰胺、氨基甲酸酯、腈、烷基氯和醚等官能团没有受到影响。
• Enantioselective sensing of insect pheromones in water
  作者：Briana L. Hickey、Junyi Chen、Yunfan Zou、Adam D. Gill、Wenwan Zhong、Jocelyn G. Millar、Richard J. Hooley

  DOI：10.1039/d1cc05540b

  日期：——

  cavitands and cationic dyes has been shown to optically sense insect pheromones at micromolar concentration in water. Machine learning approaches were used to optimize the most effective array components, which allows differentiation between small structural differences in targets, including between different diastereomers, even though the pheromones have no innate chromophore. When combined with chiral additives

  水溶性深空腔和阳离子染料的阵列组合已被证明可以在水中以微摩尔浓度光学感知昆虫信息素。机器学习方法用于优化最有效的阵列组件，即使信息素没有先天发色团，也可以区分目标的微小结构差异，包括不同的非对映异构体之间的差异。当与手性添加剂结合使用时，对映体区分是可能的，这取决于信息素的大小和形状。